Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

One of Scandinavia's largest mosaics pays tribute to Danish art and science luminaries.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Copenhagen's "other" little mermaid marks the historic location of past sea maid sightings.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Krakow's own version of the Hollywood Walk of Fame.

Inside this Krakow church, an explosion of psychedelic color.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This automated sculpture of two men peeing will spell out text messages with their micturition.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A series of playful yellow penguins share a serious message about the environment.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

This artificial cave looks like something out of a fairytale.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.